Bilecik Şeyh Edebali Üniversitesi Kurumsal Akademik Arşivi

DSpace@Bilecik, Bilecik Şeyh Edebali Üniversitesi tarafından doğrudan ve dolaylı olarak yayınlanan; kitap, makale, tez, bildiri, rapor, araştırma verisi gibi tüm akademik kaynakları uluslararası standartlarda dijital ortamda depolar, Üniversitenin akademik performansını izlemeye aracılık eder, kaynakları uzun süreli saklar ve telif haklarına uygun olarak Açık Erişime sunar.

DSpace@Bilecik, üyelik gerektirmeyen herkese açık bir sistemdir. Üyelik ve veri girişi sadece BŞEÜ mensuplarına (Öğrenci, idari ve akademik personel) özeldir.


 

Güncel Gönderiler

Öğe
Yolsuzluğun vergi gelirleri üzerindeki etkisi
(IBANESS, 2024) Sünetci, Yunus; Özen, Eda
Yolsuzluğun vergi gelirleri ile ilişkili olduğunu literatürde yapılan birçok çalışmaya dayanarak söyleyebiliriz. Bu çalışmada yolsuzluğun vergi gelirleri üzerinde nasıl etki ettiğini görmek için GMM metodu ile 2000 ve 2020 yılları arasında bir analiz yapılmıştır. Yapılan bu analiz de OECD ülkelerine ait veriler kullanılmıştır. Vergi gelirleri ile yolsuzluk üzerinde beklenildiği gibi ters yönlü ve istatistiksel olarak anlamlı bir ilişki mevcuttur. Yolsuzluğun azaltılarak vergi gelirlerinin artması böylece ekonomiye katkı sağlanması beklenmektedir. Bu şekilde ekonomide önemli bir hacme sahip olan vergi gelirlerinden tam anlamıyla katkı sağlaması planlanmalıdır.
Öğe
Ultrasound-assisted synthesis of rGO/SiO2-based nanosheets and their electrochemical performances in Li-ion batteries
(Tubitak Scientific & Technological Research Council Turkey, 2023) Lokcu, Ersu; Can, Süleyman; Anık, Mustafa
In this study, a facile approach has been developed to fabricate GO/SiO2 nanosheets by the hydrolysis of tetraethyl orthosilicate (TEOS) in the graphene oxide (GO) solution with the assistance of the ultrasonication. The morphology and structure of the SiO2/GO nanosheets were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FTIR) and Raman spectroscopy. The results showed that the covalently bonded SiO2 nanoparticles onto the GO sheets were dense and uniform. The agglomeration of the nanosheets was prevented by the ultrasonication and the layer sizes decreased throughout the synthesis process. The size and thickness of the SiO2 nanoparticles were determined by the initially and externally added TEOS amounts, respectively, on the GO surface. The anode performance of the thermally reduced rGO/SiO2 nanosheets was also observed in the Li-ion half-cell. The reversible capacity of the synthesized TrGOSN-1.5 anode was 424 mA h g-1 at a current density of 100 mA g-1.
Öğe
Experimental investigations the effects of dusty, humidity and temperature conditions on chemical anchors
(Pontificia Univ Catolica Chile, Escuela Construccion Civil, 2023) Caliskan, Ozlem; Aras, Murat; Agdag, Yilmaz
Chemical anchor applications are frequently used to add new structural elements to existing structures. Chemical anchors can be applied quickly and easily, if anchors apply according to a detailed installation and cleaning procedure depending on environmental conditions and workmanship. In this work, the relationship between the axial tensile capacity of chemical anchors and the effect of dust, humidity, and temperature were examined as adverse conditions. The effect of using different conditions, anchorage diameters and embedment depth on the tensile strength of the anchors was evaluated. In the experimental study, anchors diameter 12, 16 and 20 mm were selected to be used as anchors. The depth of embedding was determined to be 5, 10, 15 and 20 times the diameter of used anchors. The initial stiffness, displacement ductility ratio, energy absorption capacity, failure modes, and safety levels according to ACI 318 were obtained by using the load -dis-placement curves. According to the parameters considered in the experimental program, the most unfavorable situation was obtained in anchors embedded in a wet environment. In addition, it was observed that the diameter of the drilled holes causes a decrease in the axial tensile capacity by increasing the exposure time of the anchors to water and temperature.
Öğe
Birotational hypersurface and the second Laplace-Beltrami operator in the four dimensional Euclidean space E4
(Tubitak Scientific & Technological Research Council Turkey, 2022) Guler, Erhan; Yayli, Yusuf; Hacisalihoglu, Hasan Hilmi
We consider the birotational hypersurface x(u, v, w) with the second Laplace-Beltrami operator in the four dimensional Euclidean space E-4. We give the i -th curvatures of x. In addition, we compute the second Laplace-Beltrami operator of the birotational hypersurface satisfying Delta(II) x =Ax for some 4 x 4 matrix A.
Öğe
Herbicide resistance in Avena sterilis subsp ludoviciana populations from the wheat fields of Turkey
(Tubitak Scientific & Technological Research Council Turkey, 2022) Turkseven, Suleyman Gurdal; Uludag, Ahmet; Demirci, Mehmet; Serim, Ahmet Tansel
Avena sterilis L. subsp ludoviciana (Durieu) Gillet and Magne (AVELU) is among the most common and economically important grass weed species, especially in wheat fields of Turkey; therefore, the herbicides with the same mode of action (ACCase and ALS/AHAS inhibitors) are used to control have been successively applied without incessant by farmers. A study was conducted to find out the extent of wild oat problems throughout Turkey including herbicide resistance. This paper includes results of determining the herbicide resistance status of AVELU populations to ACCase and ALS inhibitors that are fenoxaprop (Fen), pinoxaden (Pin), tralkoxydim (Tra), mesosulfuron+iodosulfuron (MeI), and proxycarbazone+mesosulfuron (PrM). AVELU seeds were collected from 213 wheat fields throughout Turkey in 2014-2015 and the response to selected five herbicides was tested under screen-house. Dose-response tests showed that only 42 populations were controlled by all five herbicides. The number of populations that were not controlled varied by herbicides, which were 150, 48, 25, 100, and 100 populations for Fen, Pin, Tra, MeI, and PrM, respectively. Nine populations were resistant to all herbicides and 72 to four of herbicides out of 155 multiple resistance populations. The high number of multiple resistances and higher resistance indexes show the seriousness of the problem. Although resistance to MeI and Tra herbicides are still developing, Fen resistance seems completed and reached moderate and high resistance levels. Integrated weed management is an inevitable challenge to sustain wheat production, a staple crop for Turkey.